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Finding the Fourth Proportional to 484,662.91, 726,657.71 and 214,643.91

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Solution

The fourth proportional to 484,662.91, 726,657.71 and 214,643.91 is: 321,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,662.91 : 726,657.71 = 214,643.91 : x
  2. Step 2: Convert to fraction form
    484,662.91/726,657.71 = 214,643.91/x
  3. Step 3: Cross multiply
    484,662.91x = 726,657.71 × 214,643.91
  4. Step 4: Simplify right side
    484,662.91x = 155,972,652,106.05
  5. Step 5: Solve for x
    x = 155,972,652,106.05/484,662.91
  6. Step 6: Final answer
    x = 321,816.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.